Apparatus for checking working-time.



K. A. R. JOHANSON.

APPARATUS FOR CHECKING WORKING TIME. APPLICATION FILED AUG-26,1912.

1,235,519. Patented July 31,1917.

2 SHEETS-SHEET I K. A. R. JOHANSON.

APPARATUS FOR CHECKING WORKING TIME. APPLICATION FILED Aue.26, 1912.

-1,235,'5 1 9. Patented July 31, 1917.

2 SHEETS- SHEET 2.

UNITED STATES PATENT OFFICE.

KARL ALFRED RAGNAR JOHANSON, OF STOCKl-IOLM, SWEDEN. ASSIGNOR TO NYA AKTIEBOLAGET SVENSKA AUTOMATFAIBRIKEN, OF STOCKHOLM. SWEDEN.

APPARATUS FOR CHECKING WORKING-TIME.

Application filed August 26. 1912.

To all whom it may concern:

Be it known that I, KARL ALFRED RAGNAR JOHANSON, a subject of the King of Sweden,

and a resident of Stockholm, Sweden, have invented new and useful Improvements in Apparatus for Checking Working-Time, of which the following is a specification, reference being had to the drawings accompanying and forming a part hereof.

My invention relates to improvements in apparatus for checking working time of the type used for printing cards inserted into the apparatus. The object of my invention is to construct an apparatus which shall print direct upon the card the amount of time used for the work, so that no calculating operation shall be necessary.

To gain this object my invention consists chiefly in a time checking apparatus comprising a frame arranged to receive a card, two typewheels rotatable relatively to the frame and relatively to one another journaled in the frame and arranged to print the card, and a clockwork coupled between the wheels and arranged to turn one wheel relatively to the other one. The card is inserted into the apparatus when the work is started and is then printed by only the first wheel. When the work is finished the card is again inserted and is then printed by both the wheels, the second wheel printing upon the card the time elapsed between the two insertions, said time being directly proportional to the angle by which the two wheels have been rotated relatively to one another. At the first insertion of a card the second wheel is always returned to its zero position and the first wheel marks the card with a control figure. At the second introduction of the card the first wheel is turned until it prints again the same control figure upon the card, while the second wheel prints the time consumed for the work.

My invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical cross-section of the apparatus, the section being taken on the line AB of Fig. 2. Fig. 2 is a vertical cross section taken at right angles to the section shown in Fig. 1. Fig. 3 shows the slots in which the cards are inserted as viewed from above, and Fig. 4 illustrates a card as printed by the apparatus. Fig. 5 and Flg. 6 show detalls of the apparatus.

Referring to the drawings, 1 represents Specification of Letters Patent.

Patented July 31, 1917.

Serial No. 717,196.

the frame or casing of the apparatus, 2, 2 represent hearings in which the shaft 3 is Journaled, and a a crank fastened to the shaft. To the shaft 3 are fastened the two wheels 5 and 6, the wheel 5 inside of the casing, and the wheel 6 between the casing and the crank outside of the casing. Inside of the casing are two wheels or disks 7 and 8 mounted rotatably on the shaft 3. The wheel 5 is attached by rods 9 to a disk 10 fastened to the shaft, so that the wheel 5 together with the disk 10 will form a drum fastened to the shaft 3.

Vithin this drum is an electromagnet 12 fastened to the bar 11. One end of the armature 13 of this electromagnet is fastened to the lever 14 which is fulcrumed on the shaft 15, fastened between wheel 5 and disk 10, the lever 14 being guided by a tube 16 surrounding the shaft 15. The spring 17 acting on the lever let serves to keep the armature 13 normally at a distance from the electromagnet. Upon a stud 20, fastened to the lever 11, is loosely mounted a pawl 18 by a spring or the like held in engagement with the ratchet wheel 19 which is fastened to the wheel 7, the stud 20 extending through a slot 21 provided in the edge of the disk 10.

When the electromagnet 12 is energized it will attract its armature 13 so that the lever 14 is turned counter-clockwise in Fig. 1, and the pawl 18 will turn the wheel 7 as much as one tooth of the wheel 19 relatively to the wheel 5. Electric current is conveyed to the electromagnet through the contact spring 22 insulated from the frame at 23 and resting against a contact ring 2st fastened to the shaft 3 but insulated therefrom. One end of the winding of the electromagnet is fastened to the ring 24, its other end being connected to the shaft 3 and thus to the frame. The closing of the electric circuit may preferably be efiected through a master clock in common for a number of such apparatus as here described in such manner that an impulse of current is sent through the electromagnet at regular intervalssay every 15 minutes. The circumference of the wheel 7 is provided with types for printing every quarter of an hour. The wheels 5 and 6 have types for printing control figures, and the wheel 8 carries types for printing the names of all the week days. To the wheel 8 is fastened a cogwheel 25 engaging a pinion 26 which is to be turned by means of a key, not shown on the drawing.

A card 27 such as shown in Fig. 4 is given to every workman who is to do any certain work. Two slots 28 and 29 are provided in the casing obliquely in relation to one an-. other as shown in Fig. 3. When the card is I wheel 8. Upon turning the wheel 8 a step in the direction of the arrow in Fig. 6 the rib30will be lifted through a distance equal to the distance between two lines in the card27.

Forprinting a card thelever 35 is providedpfastene'd to the shaft 34.. One end 36 of this'lever is so arranged as to limit the upward movement of the lever toits other endzis joinedthearm67 which supports a hammerxfor bringingvthe card in contact with the types onlthe wheels. The hammer consists preferably of pieces of rubber 39- held in a channel bar 38 opposite" the faces offthe typewheels.

shown in-Figgl. Upon the end of shaft 34 outside ofthcasing is fastened the crank he inserts .his card into the inner slot 28 and so that'itre'sts upon the rib 30. By means of the' crank '4he turns the wheel 7 back to its zero-posit-ion which is determined by the pawl 42 joined. to the bearings and 2 and engaging .the heel 43} upon the wheel 7 The workman then. depresses the lever 41 and lets it go suddenly whereupon the spring 40 thr'ows the hammer. against the card. Upon the card will then be printed the name. of the day by the wheel 8 and the control figure for instance 130by the wheel 5, while the wheel 7 will print nothing the location of'the slot 28 being such that the card does not reach the wheel7. The workman now takes out the. card and preserves it until the work is completed.

In the meantime the apparatus may be used by other workmen, care being taken that the wheel 7 be always returned to its zero position.

lVhen the work is completed the workman again inserts his card into the apparatus but thistime into the slot 29, when the card will stand opposite all of the wheels 8, 5 and 7.

He now'turns the crank 4 until the control figure. on thewheel 6 which corresponds to the control figure on his cardthus inthe caseassumed thefigure 130-will come .oppo sitethe indeX"44 fastened to theframe. The types-outhe'wheels 6 and 5 are so placed The. spiral spring 40' serves to keep the lever'35 in the'position electromagnet 12, andby the' master clock control-lingit, through justvsuch an angle relatively, .to the wheel 5, that the typeswhich state 'thesaid time 'are opposite the hammer whenthe wheel 5 is so turned that the control figure 130' as before stands opposite the hammer.

The types of ,--'the wheels may be such that theyfmark the figures, etc, direct on the cards or a color ribbon may be arranged between the types and the cards, theribbon the mechanism used on typewriters for such purpose.

In order that the. apparatus shall operate in the manner described it is of course-necessary that the wheel 7 must not turn relatively to 'th'e'wheel 5 except at the moments when'the' electromagnet 12 becomesiexci'ted and attracts its armature. In order to pre-- ventanvaccldental turning of the wheel 7,

two studs 45 and 46' are fastened to the lever 14 (F in suchwayth'at they will'entirely stop the wheel 7 from moving eX-- being fed bysuitable mechanism similar'to cept at'the moment when thearmature becomesattractedf When the lever 14.occupies" its normal position (shown 'in full" drawn lines inFig. 5) the stud 46*lies close to a tooth in' the wheel]19andtherefore prevents the wheel from turning in the direction' of th'e arrow. When the armature is. at

tracted and moves) the lever,14","the stud-46 will releasei'the wheelfwhile; the stud '45 will immediately engagef'the wheel and per-',

formj the same function as did the stud 46 to'prevent'the wheel from turning in the directionof. the arrow more-than one tooth :at a time. Any. monomer 'the' wheel in the'op 'posite direction is prevented .by-the "pa'wl18'5 When thehandle4 is rotated in one or they other direction the"wheels 6 and 5 secured to the shaft 3 will, of course, berotated-as we'll'as the magnet 12 secured to the wheel 5. By means of the studs 45, 46. and the pawl 18 on the lever 14 of "the armature"13 the wheel 7 will be brought to rotate with the shaft iand the wheels '6 and. 5. p

I do not limit my invention to the particular construction shown in the drawing, forv this construction .may. be 'modified 'in' many respects and stillcome "withinthef scope of my claims. For instance thewhe'el 7 may be divided'up "into several smallr wheels, and the number of electromagnets correspondingly increased. Instead of the electromagnet and its associated parts a clockwork may be provided within the apparatus, and arranged to turn one of the wheels at constant speed relatively to the other one.

Having thus described my invention, what I claim is:

1. In a time checking apparatus, the combination of a frame arranged to receive a card, a shaft freely turning in the frame, a typewheel secured to and turning with the shaft, a second typewheel on the shaft rotatable relatively to the first-named wheel, said typewheels being arranged to print the card, and a clockwork secured to one of the wheels and arranged to turn the second typewheel relatively to the other one, substantially as and for the purpose described.

2. In a time checking apparatus, the combination of a frame arranged to receive a card, a shaft freely turning in the frame, a typewheel secured to and turning with the shaft, a second typewheel on the shaft rotatable relatively to the first-named wheel, said typewheels arranged to print the card, an electromagnet secured to the first-named wheel and arranged to turn the second wheel relatively to the same, and means for conveying electric current to the electromagnet, substantially as and for the purpose cle scribed.

3. In a time checln'ng apparatus; the combination of a frame arranged to receive a card, a shaft freely turning in the frame, a typewheel secured to and turning with the shaft, a second typewheel on the shaft rotatable relatively to the first-named wheel, said typewheels arranged to print the card, an electromagnet secured to the first-named wheel and having an armature, an operative connection between the armature and the second wheel, and means for conveying electric current to the electromagnet, substantially as and for the purpose described.

4. In a time checking apparatus, the combination of a frame arranged to receive a card, a shaft freely turning in the frame, a typewheel secured to and turning with the shaft, a second typewheel on the shaft rotatable relatively to the first-named wheel, said typewheels arranged to print the card, an electromagnet secured to the first-named wheel and having an armature, a connection between the armature and the second wheel for turning the same relatively to the first named wheel, means for locking the second wheel to the armature when not turned by the same, and means for conveying electric current to the electromagne't at regular intervals, substantially as and for the purpose described.

KARL ALFRED RAGNAR JOHANSON.

Witnesses FRED NoRDsJo, KARR DAHLQUIST.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

